- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F25B - Refrigeration machines, plants or systemscombined heating and refrigeration systemsheat pump systems
- F25B 9/00 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
Patent holdings for IPC class F25B 9/00
Total number of patents in this class: 1841
10-year publication summary
|
102
|
139
|
160
|
149
|
124
|
124
|
147
|
123
|
160
|
92
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Heavy Industries, Ltd. | 1946 |
114 |
| Carrier Corporation | 4294 |
90 |
| Hamilton Sundstrand Corporation | 4907 |
73 |
| Daikin Industries, Ltd. | 10070 |
65 |
| Honeywell International Inc. | 13550 |
60 |
| Mitsubishi Electric Corporation | 46397 |
48 |
| Heatcraft Refrigeration Products LLC | 260 |
43 |
| Hill Phoenix, Inc. | 272 |
43 |
| LG Electronics Inc. | 73531 |
42 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3994 |
31 |
| Energy Recovery, Inc. | 176 |
22 |
| Arkema France | 4164 |
19 |
| Toshiba Materials Co., Ltd. | 664 |
17 |
| Raytheon Company | 8393 |
16 |
| Hanon Systems | 1972 |
16 |
| Edwards Vacuum LLC | 180 |
13 |
| Agc, Inc. | 4913 |
13 |
| Copeland LP | 700 |
13 |
| Sumitomo (SHI) Cryogenics of America, Inc. | 78 |
12 |
| Denso Corporation | 24431 |
11 |
| Other owners | 1080 |